Used for removing rounded or stripped fasteners with
internal drive heads. Can be used on new screws as well.
Reverse twist in the hex key bites into stripped out hex for
easy removal.
Full range to remove most common sizes.
3/8" drive: 4mm, 5mm, 6mm and 7mm and 1/2" drive: 8mm,
10mm, 12mm, 14mm and 17mm.
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